want to get thread to stop when application exits

[dan146]

In response to Chrisw67, the thread checks this flag right after the gui thread releases a lock, so the destructor actually looks like this:

MainWindow::~MainWindow()
{

fprintf(dfp,"\n\n=================EXITING APPLICATION====================\n\n");
app_trying_to_exit = true;
sysmutex.unlock();
delete ui;
}

Note I don't see the output from fprintf in my log file.


In response to Wysota, I will look into non thread pool threads. Note the thread waits on a lock for 99% of the time, so maybe starving the app this isn't a problem.

[wysota]

It is, because the thread is created and reserved. The fact that it sleeps is meaningless. If you try to start another thread from the pool that has only one thread, the thread will not start until the first one exits (which happens when the application is destroyed) so in practice the second thread will not run at all. You would have to release the thread before going to sleep on the mutex and reserve it back again when you are woken up. However it simply makes no sense to complicate things that much in this particular case since it's much easier to use QThread.

[dan146]

Sorry for the slow reply, I'm juggling 3 projects. Yes I used QThread and it works great now! The flag is now seen by the thread and it exits properly.
Thanks!